Re: [Fetchmail-users] Warning users about authentication failures

[Matthias A. <mat...@gm...>]

Am 21.06.25 um 14:45 schrieb Andrea Venturoli:
> On 6/21/25 12:48, Matthias Andree via Fetchmail-users wrote:
>
> Hello.
>
> Thanks for your answer.
>
>
>
>> these warnings work only in daemon mode
>
> That's my case.
>
>
>
>> fetchmail runs for a sufficiently long time
>
> It's usually weeks, if not months before I restart it.
>
>
>
>> fetchmail didn't authenticate successfully, it should send the 
>> warning after 3 failed attempts;
>
> It did (in the past); only it doesn't anymore :(
>
>
>
>> If fetchmail is triggered purely by cron or systemd timer or similar, 
>
> Not my case.
>
>
>
>> Changes to configuration files also trigger fetchmail to discard 
>> state and re-execute itself.
>
> These are very rare.
>
>
>
>> Oh, one more thing, this only happens on authentication failures and 
>> timeouts BUT NOT on other errors,
>
> That's fine; that's what I'm trying to get.
>
>
>
> I thought some option was added to enable/disable this, but if you 
> confirm it hasn't, I guess I'll need to try and debug this. 


I would probably start by checking what actual error code is passed 
through this code in driver.c (near line 1150) as return from the 
->getauth(...) method:

> /* accept greeting message from mail server */
>        err = 
> (ctl->server.base_protocol->parse_response)(mailserver_socket, buf);
> if(err != 0)
> gotocleanUp;
>
> /* try to get authorized to fetch mail */
> if(ctl->server.base_protocol->getauth)
>        {
>            set_timeout(mytimeout);
>            err = 
> (ctl->server.base_protocol->getauth)(mailserver_socket, ctl, buf);
>            set_timeout(0);
>
> if(err != 0)
>            {
> if(err == PS_LOCKBUSY)
>                    report(stderr, GT_("Lock-busy error on %s@%s\n"),
>                          ctl->remotename,
>                          ctl->server.truename);
> elseif(err == PS_SERVBUSY)
>                    report(stderr, GT_("Server busy error on %s@%s\n"),
>                          ctl->remotename,
>                          ctl->server.truename);
> elseif(err == PS_AUTHFAIL)
>                {
>                    report(stderr, GT_("Authorization failure on 
> %s@%s%s\n"),
>                           ctl->remotename,
>                           ctl->server.truename,
>                           (ctl->wehaveauthed ? GT_(" (previously 
> authorized)") : "")
>                        );
> if(ctl->server.authenticate == A_ANY && !ctl->wehaveauthed) {
>                        report(stderr, GT_("For help, see 
> http://www.fetchmail.info/fetchmail-FAQ.html#R15\n"));
>                    }
>